AI Glossary
Seed
Also called random seed
What does “Seed” mean?
Seed: Number that sets the starting random noise for a generation. With the same model, prompt, seed and settings, many tools will reproduce the same image; changing only the seed gives a different variation. Exact reproducibility can still vary across hardware or software versions.

What is an example of “Seed”?
If you like an image's composition, locking its seed lets you tweak the prompt wording while keeping a similar overall layout.